refactor(editor): replace 60-handler chain with table-driven dispatch

Adds cli_dispatch.{hpp,cpp} containing a static table of every
extracted handler family's dispatch function. The table-walker
tryDispatchAll() iterates the table once per argv token, calling
each handler in turn. handleConvertSingle stays as a special-
case call in main.cpp because it threads dataPath through.

main.cpp shrinks from 486 to 236 lines (-250). Adding a new
handler module now requires touching only cli_dispatch.cpp's
include list + table — no main.cpp edits, no growing
if-else chain. The 60+ #include lines for individual cli_*
modules collapse to one #include for cli_dispatch.hpp.

tools/editor/cli_dispatch.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+namespace wowee {
+namespace editor {
+namespace cli {
+
+// Try every registered handler family in turn against argv[i].
+// Returns true if a handler claimed the flag (sets outRc); the
+// caller should return outRc immediately. Returns false if no
+// handler matched — the caller falls through to its own
+// inline-handler chain (for handlers needing extra parameters
+// like dataPath, or for the GUI-state args --data / --adt).
+//
+// The handler-family table lives in cli_dispatch.cpp; adding a
+// new module means adding one #include + one row there, no
+// touching of main.cpp's argv loop required.
+bool tryDispatchAll(int& i, int argc, char** argv, int& outRc);
+
+} // namespace cli
+} // namespace editor
+} // namespace wowee